Radiance backlight keyboard and proximity sensor
The radiance backlight keyboard feature, turned on at the factory, uses proximity sensor technology to automatically light up the keyboard when the sensors detect your presence in front of the computer. The proximity sensors, also turned on at the factory, automatically turn the radiance backlight keyboard feature on or off based on your location.
▲To turn the radiance backlight keyboard feature off or on, press f5.
NOTE: When this feature is on, the light on the f5 key is on.
▲To switch between low, medium, and high brightness levels, press and hold f5 in combination with either the up arrow key or the down arrow key.
▲To change the proximity sensor settings, from the Start screen, type p, and then select HP Proximity Sensor from the list of applications.
40 Chapter 5 Navigating using touch gestures, pointing devices and the keyboard